Got the first two steps of the checkout form layout out with basic styles and javascript.  Added the jquery-ui-rails gem to the project.
Finished laying out the last step in the checkout form.
Added the existing shipping address / card fields to the checkout form.
Laid out the cart summary in the checkout view.  Added the jquery-validate-rails gem to the project.
Styled the menu bar
Styled the footer and the gear landing page.  Still need to add images.